PHP文件下载
2016-08-26 16:33
351 查看
<?php function dl_file($file){ //First, see if the file exists if (!is_file($file)) { die("<b>404 File not found!</b>"); } //Gather relevent info about file $len = filesize($file); $filename = basename($file); $file_extension = strtolower(substr(strrchr($filename,"."),1)); //This will set the Content-Type to the appropriate setting for the file switch( $file_extension ) { case "pdf": $ctype="application/pdf"; break; case "exe": $ctype="application/octet-stream"; break; case "zip": $ctype="application/zip"; break; case "doc": $ctype="application/msword"; break; case "xls": $ctype="application/vnd.ms-excel"; break; case "ppt": $ctype="application/vnd.ms-powerpoint"; break; case "gif": $ctype="image/gif"; break; case "png": $ctype="image/png"; break; case "jpeg": case "jpg": $ctype="image/jpg"; break; case "mp3": $ctype="audio/mpeg"; break; case "wav": $ctype="audio/x-wav"; break; case "mpeg": case "mpg": case "mpe": $ctype="video/mpeg"; break; case "mov": $ctype="video/quicktime"; break; case "avi": $ctype="video/x-msvideo"; break; //The following are for extensions that shouldn't be downloaded (sensitive stuff, like php files) case "php": case "htm": case "html": case "txt": die("<b>Cannot be used for ". $file_extension ." files!</b>"); break; default: $ctype="application/force-download"; } //Begin writing headers header("Pragma: public"); header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: public"); header("Content-Description: File Transfer"); //Use the switch-generated Content-Type header("Content-Type: $ctype"); //Force the download $header="Content-Disposition: attachment; filename=".$filename.";"; header($header ); header("Content-Transfer-Encoding: binary"); header("Content-Length: ".$len); @readfile($file); exit; } ?>
相关文章推荐
- 用PHP实现文件下载
- PHP实现文件安全下载
- 使用PHP脚本下载远程文件
- PHP+FLASH实现上传文件进度条相关文件 下载
- Flash两个上传示例ASP和PHP(原文件下载,包括后台程序)
- PHP实现文件下载
- php实现显示文件下载大小
- PHP文件下载类
- 一段php的文件下载函数
- 文件下载统计php编程
- 转:最近看了一篇文章用PHP实现手机对jar,jad文件的下载 作者:陈泽|SurfChen
- PHP小程序—从A空间直接下载文件到B空间—RGD 1.5 上一主题 | 下一主题
- 用PHP实现文件下载
- PHP实现文件安全下载
- PHP实现文件安全下载 (藏)
- PHP实现文件安全下载
- php点击下载txt文件
- PHP实现文件安全下载
- 学习工作中的一个PHP文件下载代码
- PHP+FLASH实现上传文件进度条相关文件 下载